package 慕课网.homework2;

public class trike extends Car{
    public trike(){
        this.setWhell(3);
    }
    public String describle(){
        String str="三轮车类测试："
                +"三轮车是一款有"+this.getWhell()
                +"个轮子的非机动车";
        return str;
    }
}
